If the Premier League didn’t think Leicester City had a realistic chance of becoming champions this season, the other 19 clubs better take them seriously from this point forward.

Leicester City, who was four points adrift of relegation at this point last season, increased its lead atop the Premier League standings to six points — the largest of the season — with a dominant 3-1 win over second-place Manchester City at the Etihad Stadium on Saturday.

Robert Huth easily was the man of the match. The Leicester City defender opened the scoring with a goal off a corner kick just three minutes in, and he added another in the 60th minute via a powerful header. Riyad Mahrez also scored in the 48th minute.

Manchester City was able to spoil Leicester’s clean sheet hopes when Sergio Aguero struck in the 87th minute. The home side threatened a bit in stoppage time, but the result was never in question.

The win was so impressive that Leicester City’s website crashed shortly after the final whistle because so many people were trying to access the page.

Let’s put it this way: if Leicester City wins the league, it will be the biggest story in the history of English club football.

Experts weren’t even sure if this club would even survive relegation in 2015-16, and oddsmakers gave it 5000-1 odds to win the league. Man City has spent almost 200 million more British pounds than Leicester City on this season’s squad. That’s incredible.

Leicester City has one more tough league matchup against Arsenal on Valentine’s Day before embarking on a nine-match stretch without facing a team currently in the top five of the standings. However, Leicester closes the season against Manchester United, Everton and Chelsea.

Leicester City isn’t a lock to win the title, but Saturday’s statement win proved the club is not to be taken lightly for the rest of the campaign. This is a well-coached, talented and deep squad that will be in the race until the very end.